Statistical Analysis of the Time Complexity Measure
The problem of obtaining realistic and easily predictable estimations of the assembly time for a product, especially during the early stages of the design process, is usually solved utilizing Design for Assembly (DFA) methodologies which are generally based on empirical observations and experiments, and which can give good results if complete data regarding the parts used are provided to the system. In this chapter, we show that the time complexity measure presented in Chapter 8 (Equation 8.8) and the approximate total assembly time of a product, as derived from Boothroyd and Dewhurst’ DFA methodology , are highly correlated over a wide diversity of experiments. The chapter also shows that there is logical consistency with the Barkan and Hinckley estimation method of total assembly time of a product.
KeywordsAssembly Time Pareto Distribution Percent Confidence Interval Assembly Operation Strong Linear Correlation
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